355 Slowdown Light code 1445 | FerrariChat

355 Slowdown Light code 1445

Discussion in 'Technical Q&A' started by 355Aloha, Sep 6, 2004.

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  1. 355Aloha

    355Aloha Karting

    Joined:
    Feb 15, 2004
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    Location:
    Honolulu Hawaii
    Full Name:
    John N
    My slow down light comes on for 10-15 min or so and goes off. This has been a problem for several months now.
    If I shut the car off when the light is on, it will be on the next day when the car starts. I also get code 1445
    How do I trouble shoot if it is the problem is the ECU or Sensor with out buying a both and which side is bad.
     
    355Aloha, Sep 6, 2004
    #1
  2. Diablo

    Diablo Formula Junior

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    In front of the comp
    what year is the 355 and do you still have the cats in there??
     
    Diablo, Sep 6, 2004
    #2
  3. 355Aloha

    355Aloha Karting

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    John N
    The car is 1996 with cats. I had the car to the dealer a month before cat warranty expired. When the car was in, the slowdown light would not come on and he said the cats were in good condition.
     
    355Aloha, Sep 7, 2004
    #3
  4. Ferrari_tech

    Ferrari_tech Formula 3

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    Malcolm W
    John - A few ideas for you.................

    P1445 Catalyst Temperature (Vescovini) Range / Performance (Min/Max/Plaus)
    1.Check the wiring
    2.Check Vescovini ECU functionality
    3.Check thermocouple functionality

    Most common fault is the thermocouple, but to diagnose properly you will need to take your car to an official Ferrari repair shop who will have the correct equipment to diagnose the faults.

    To test the thermocouple they would use tester D31
    To test the ECU they would use tester SD1

    By using this test equipment they would be able to see if you require either the thermocouple or the ECU, or if you're unlucky both.
     
    Ferrari_tech, Sep 7, 2004
    #4
  5. gothspeed

    gothspeed F1 World Champ

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    goth
    Wow that is the last code that I have been trying to get rid of! What is a D31 and SD?? I do get the slow down light flashing if I let the car heat soak after driving. Then start driving again.

    My cats have been replaced with hyperflow. They melted. I believe my sensors thermocouples or O2's were not changed in the 30K service.

    My car is a 1997 F355
     
    gothspeed, Aug 2, 2006
    #5

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